dyer@spdcc.COM (Steve Dyer) (07/22/87)
4.1BSD network code was switchable between having a network process
for consuming network input or using the VAX software interrupt system
to do this at interrupt level and avoid the overhead of a context switch.
The 4.2 and 4.3 network code assumes a software interrupt system. Since
not every hardware architecture supports this feature and the code has
been ported to a wide variety of different machines, I was wondering what
the most common ways of implementing this were. Do you examine the state of
the software interrupt flag upon returning from a hardware interrupt?
Check it during a timeout() routine?
Thanks,
--
Steve Dyer
dyer@harvard.harvard.edu
dyer@spdcc.COM aka {ihnp4,harvard,linus,ima,bbn,m2c}!spdcc!dyer